[Iaude] MPEC F23: 2017 CO32 [a=1.39,e=0.83,i=27.6,H=19.4]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Mar 17 14:41:16 EDT 2018


M.P.E.C. 2018-F23                                Issued 2018 Mar. 17, 18:37 UT
 
     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
    on behalf of Division F of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.

             Prepared using the Tamkin Foundation Computer Network

                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 CO32
 
                           Revision to MPEC 2017-D06
 
Additional Observations:
     K17C32O |C2018 03 11.34949 16 09 13.23 -31 51 37.4          23.1 GUEF023807
     K17C32O |C2018 03 11.36814 16 09 13.74 -31 51 53.3          23.0 GUEF023807
     K17C32O |C2018 03 11.38635 16 09 14.32 -31 52 08.5          23.1 GUEF023807
     K17C32O |C2018 03 17.39294 16 11 56.72 -33 19 07.6          22.7 GUEF023807
     K17C32O |C2018 03 17.39781 16 11 56.81 -33 19 11.6          22.9 GUEF023807
     K17C32O |C2018 03 17.40350 16 11 56.93 -33 19 17.6          22.6 GUEF023807
 
Observer details:
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  1.00-m f/10.0 astrograph
    + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
180311 807  8.5+  6.1-    180317 807  9.6+  8.1-    MPO438035   -0.013 day
 
Orbital elements:
2017 CO32                                                Earth MOID = 0.3302 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 286.06805              (2000.0)            P               Q
n   0.60467473     Peri.  358.42419     +0.93964389     -0.29748991
a   1.3850161      Node    21.39185     +0.31877139     +0.58166755
e   0.8331440      Incl.   27.60698     +0.12431476     +0.75707504
P   1.63           H   19.4           G   0.15           U   4
Residuals in seconds of arc
170209 F51  0.0   0.3-    170224 J04  0.2+  0.4-    170308 691  0.8-  0.0
170209 F51  0.2+  0.2-    170224 I52  0.8+  0.5+    170308 691  0.7-  0.3+
170209 F51  0.3+  0.3-    170224 I52  0.9-  0.2-    170308 691  0.5-  0.0
170209 F51  0.2+  0.0     170224 I52  0.6-  0.3-    170315 695  0.3+  0.4+
170210 H01  0.3+  0.3-    170224 I52  0.0   0.0     170315 695  0.3+  0.3+
170210 H01  0.2+  0.3-    170226 H21  0.0   0.1-    170315 695  0.3+  0.3+
170210 H01  0.1+  0.2-    170226 H21  0.0   0.3-    170316 F51  0.3-  0.0
170210 H01  0.2+  0.2-    170226 H21  0.1+  0.4-    170316 F51  0.0   0.0
170210 695  0.4+  0.1+    170302 G96  0.9+  0.6-    170316 F51  0.3+  0.2+
170210 695  0.2-  0.4+    170302 G96  0.5+  0.1+    170416 H21  1.1+  0.0
170210 695  1.1+  0.6+    170302 G96  0.5+  0.1+    170416 H21  0.6+  0.2+
170211 695  0.2+  0.4+    170302 G96  0.7+  0.6+    170416 H21  0.9+  0.2-
170211 695  0.2+  0.3+    170303 H21  0.4+  0.3+    180311 807  0.3+  0.4+
170211 695  1.0+  1.2+    170303 H21  0.4+  0.0     180311 807  0.4-  0.0
170216 291  0.7-  0.1+    170303 H21  0.6+  0.3+    180311 807  0.1+  0.1-
170216 291  0.7-  0.0     170307 F51  0.3+  0.1-    180317 807  0.1-  0.3-
170216 291  0.8-  0.3+    170307 F51  0.1+  0.1-    180317 807  0.1-  0.1+
170224 J04  0.0   0.1-    170307 F51  0.2+  0.2-    180317 807  0.1+  0.7-
170224 J04  0.2-  0.0     170307 F51  0.3+  0.1+

Ephemeris:
2017 CO32                a,e,i = 1.39, 0.83, 28                  q = 0.2311
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 15    15 49 57.0 -27 07 24   1.9997  2.1492    84.8    27.2    23.8
...
2018 03 02    16 03 05.8 -29 52 02   1.6932  2.0551    96.4    28.6    23.4
...
2018 03 10    16 08 27.8 -31 33 17   1.5298  1.9998   102.8    29.0    23.1
...
2018 03 16    16 11 25.2 -32 58 06   1.4084  1.9559   107.7    29.0    22.9
2018 03 17    16 11 48.2 -33 13 07   1.3883  1.9484   108.6    29.0    22.8
2018 03 18    16 12 09.2 -33 28 26   1.3683  1.9408   109.4    28.9    22.8
...
2018 03 24    16 13 26.7 -35 06 39   1.2496  1.8940   114.5    28.6    22.5
...
2018 04 01    16 12 28.4 -37 38 09   1.0963  1.8280   121.4    27.8    22.1
...
2018 04 16    15 56 54.8 -43 47 37   0.8310  1.6922   134.3    25.1    21.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F23



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